awing 18 kW of electric power while pu nd outlet diameters of the pipe are 8 c easured to be 250 kPa and the motor pump. Take the kinetic energy correcti cm - 250 kPa 18 kW کے کر Motor efficiency of the pump is %.
awing 18 kW of electric power while pu nd outlet diameters of the pipe are 8 c easured to be 250 kPa and the motor pump. Take the kinetic energy correcti cm - 250 kPa 18 kW کے کر Motor efficiency of the pump is %.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![An oil pump is drawing 18 kW of electric power while pumping oil with a density of 860 kg/m³ at a rate of 0.1 m³/s. The inlet and outlet diameters of the pipe are 8 cm and 11 cm, respectively. If the pressure rise of oil in the pump is measured to be 250 kPa and the motor efficiency is 95 percent, determine the mechanical efficiency of the pump. Take the kinetic energy correction factor as 1.05.
**Diagram Explanation:**
The diagram shows an oil pump system with the following components:
- **Pump**: It draws oil through an inlet with a diameter of 8 cm and pumps it out through an outlet with a diameter of 11 cm.
- **Motor**: The motor provides 18 kW of power to operate the pump.
- **Oil Flow Rate**: The oil flows at a rate of 0.1 m³/s.
- **Pressure Rise (ΔP)**: The pressure increase in the pump is 250 kPa.
The objective is to calculate the mechanical efficiency of the pump, considering the given parameters and corrections.
**Calculation Section:**
The mechanical efficiency of the pump is needed in the blank space provided.
\[ \text{The mechanical efficiency of the pump is } \_\_\_ \%.\]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbf732265-f2a1-4437-b173-f035baf12249%2Fdc94fe1f-d883-4d75-bd12-9d6fe71c0200%2Fstkthhe_processed.png&w=3840&q=75)
Transcribed Image Text:An oil pump is drawing 18 kW of electric power while pumping oil with a density of 860 kg/m³ at a rate of 0.1 m³/s. The inlet and outlet diameters of the pipe are 8 cm and 11 cm, respectively. If the pressure rise of oil in the pump is measured to be 250 kPa and the motor efficiency is 95 percent, determine the mechanical efficiency of the pump. Take the kinetic energy correction factor as 1.05.
**Diagram Explanation:**
The diagram shows an oil pump system with the following components:
- **Pump**: It draws oil through an inlet with a diameter of 8 cm and pumps it out through an outlet with a diameter of 11 cm.
- **Motor**: The motor provides 18 kW of power to operate the pump.
- **Oil Flow Rate**: The oil flows at a rate of 0.1 m³/s.
- **Pressure Rise (ΔP)**: The pressure increase in the pump is 250 kPa.
The objective is to calculate the mechanical efficiency of the pump, considering the given parameters and corrections.
**Calculation Section:**
The mechanical efficiency of the pump is needed in the blank space provided.
\[ \text{The mechanical efficiency of the pump is } \_\_\_ \%.\]
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